Abstract:A hubnerite (MnWO4) mineral concentrate was prepared from the mineralized quartz veins of Gabal Qash Amir muscovite granite. This W-concentrate was chemically processed to obtain the more economic highly pure tungsten oxide. To accomplish this goal, two successive atmospheric agitation leaching processes were conducted. The first includes HCl acid agitation leaching to breakdown hubnerite mineral structure. The purpose was also to get rid of the associated Mn and Fe contents from one hand, and to prepare the m… Show more
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